• Small changes related to BTC transaction plan/building:
  -- BTC plan(): Optimize for lots-of-UTXOs case. #1275
  -- BTC plan/sign: if requested amount is same or more than avail, use max #1278
  -- BTC plan: Treat MaxAmount, reqAmount=0 as not error #1282
• Other non-major changes:
  -- Fix for missing delete in case of exception. #1291
  -- Update Polkadot staking messages (test only) #1265
  -- Rearrange Trezor source files #1293
  -- Update dependencies and fix cmake warnings #1269